Why bother, you might say? Well, the biggest thing, of course, is that it is 100%, genuine open-source product. If you decided to go with it you'll prevent your business from vendor lock-in, which is always possible when you go with a commercial providers
[boilerplate to put the name of your favorite vendor in here]
So, go ahead, configure the BigTop's packages repository for your Linux distribution of choice and enjoy the mighty Hadoop stack!